What is disclosed are systems and methods for optical correction for correcting for non-uniformity in active matrix light emitting diode device (AMOLED) and other emissive displays, using iterative processing of images of calibration patterns including features of coarse and fine granularity to successively generate a high-resolution estimate of the panel pixel locations.

A display device includes: a display unit including pixels, wherein each of the pixels includes stacks connected in series and each of the stacks includes a light emitting element; a storage to store pieces of stack number information, wherein each of the pieces of the stack number information indicates the number of stacks constituting an effective light source from among the stacks for each of the pixels; a compensator to generate compensated data by compensating image data based on the pieces of the stack number information; and a data driver to generate data voltages based on the compensated data and to provide the data voltages to the display unit. The pixels are to emit light with luminances corresponding to the data voltages.

An afterimage compensation device includes: an afterimage area detector to receive an input image, and detect an afterimage area including an afterimage in the input image; an afterimage area corrector to detect a false detection area, and generate a corrected afterimage area, the false detection area being a part of a general area that is not detected as the afterimage area and surrounded in a plurality of directions by the detected afterimage area; and a compensation data generator to adjust a luminance of the corrected afterimage area to generate compensation data.

A light emitting display device can include a display panel configured to display an image; a driver configured to drive the display panel; a controller configured to control the driver; and a defect sensing circuit configured to sense a current through a driving voltage line transmitting a driving voltage for driving of the display panel, and output a sensing value based on the current for determining whether an element in a subpixel of the display panel is defective.

A display apparatus includes a first pixel including a light emitting device of a first color connected to a first data line and independently driven and a second pixel including a light emitting device of the first color connected to a second data line adjacent to the first data line and independently driven, wherein the first pixel and the second pixel are included in a first unit pixel, and the first pixel and the second pixel are alternately on-driven in a first period and a succeeding second period.

A display panel includes gate lines, data lines, switching elements connected to the gate lines and the data lines, pixel electrodes connected to the switching elements and markers. The pixel electrode includes first, second third and fourth areas which are divided by a horizontal central line and a vertical central line. The first, second, third and fourth areas correspond to an upper-left portion, an upper-right portion, a lower-left portion and a lower-right portion of a central point of the pixel electrode. When the pixel electrode is disposed between first and second data lines and connected to the first data line, the marker is disposed in one of the first and third areas. When the pixel electrode is disposed between the first and second data lines and connected to the second data line, the marker is disposed in one of the second and fourth areas.

What is disclosed are systems and methods for compensating for display OLED degradation. Correction factors k for OLED degradation of each sub-pixel is modelled and tracked based on grey level, temperature, and time, and used to correct image data provided to an OLED display.

A display apparatus includes a first semiconductor layer, a first gate insulating layer, a first conductive layer, an etch stop layer, a second gate insulating layer, a second conductive layer, a first interlayer insulating layer, a second semiconductor layer, a third gate insulating layer, a second interlayer insulating layer, and a first connection electrode layer that are sequentially stacked. The first connection electrode layer includes a first connection electrode contacting the first semiconductor layer via a contact hole defined in the first gate insulating layer, the etch stop layer, the second gate insulating layer, the first interlayer insulating layer, the third gate insulating layer, and the second interlayer insulating layer.

A method for repairing a display device, the display device including a plurality of inorganic light emitting elements arranged in a matrix and an insulator arranged around the plurality of inorganic light emitting elements, the method comprising steps of: detecting a defective inorganic light emitting element as the inorganic light emitting element having a defect; removing the insulator around the defective inorganic light emitting element while the defective inorganic light emitting element remains without being removed by irradiating the insulator around the defective inorganic light emitting element with irradiation light; and removing the defective inorganic light emitting element after the insulator therearound has been removed.

According to an embodiment of the disclosure, an electronic apparatus may include: a display configured to display an image; and a processor configured to: adjust, for each of sub areas having a specified size in an image quality degradation anticipation area of an image, a pixel value of at least one adjustment pixel among a plurality of pixels included in each sub area, and change the adjustment pixel into another pixel among the plurality of pixels, while maintaining a representative value of the plurality of pixels included in each sub area.